A.1或2 B.1或-2 C.-1或3 D.2或3 E.-2或一4

题库2022-08-02  28

问题 A.1或2B.1或-2C.-1或3D.2或3E.-2或一4

选项 A.1或2
B.1或-2
C.-1或3
D.2或3
E.-2或一4

答案 A

解析
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